Steam atomizing oil burner



Aug. 2 5, 1931. R. H. FORNI-:Y 1,820,352

STEAM ATOMIZING' OIL BURNER Filed Aug. 12, 1929 2 sheets-sheet 1 LlLl. llll Il f l Jil r Ilfl. MI

I ijn/vanto@ @Off f W10/"pay 33# W a y mmm,

Aug. v25, 1931. R. H. FoRNEY l 1,820,352

STEAM ATOMIZING OIL BURNER Filed Allg. l2, 1929 l2 Sheets-Sheet 2 j? 6 Z6 j l l me/nto@ Pof/ H. Forney 315 provided: 1 K v A further object of the invention is toprol'Patented Aug, '25, 1931 ING cougaar?, F'DALLns TEXAS, A conro'nA'rIoNoE TEXAS 'lhis invention; relates 'toi newl and `useful Improvementsin lsteainatomizmgoil burners.

ment is' simply and easily accomplished.y

= 'An important 7.objectfofthey inventionV is to produce* a burner :of high efficiency wherein the Vcomplete atomization' of the -oil is accom` plished, and wherein the maximum turbulencefor the-mixing of the airfand the'fuel is duce a burnery structure wherein the 'maX- imum velocity is obtained in the expansion of steam, thus providing for the low con- 2'0 sumption of said steam.

A still further object of the invention is' to provide a burner of the interchangeable fuel tube type that can be used in lcombination with the burners described in applicants co 3"25 ending applications, Serial No. 349,137 filed April 1, 1929.

arch 22, 1929, and Serial No. 351,712 filed A construction designed toy carry'rout the invention will be hereinafter described tofilso gether with other features of theinvention.

vThe invention will be more readily under-v stood from a reading of the following specifcation and byv reference to the accompanying l drawings in which. an example of the inven- "135 tion is shown,l and wherein:

' Figure 1 is a view partly in elevationand partly in section, `showing a burner con-V structed in ,accordance with the invention mounted in the supporting shell,

lFigure 2 is an lend view of the same, Y Figure 3 is a vertical sectional view showing the .relative position of the oil andsteam Y y tubes, Y

Figure 4 1s a vertical sectional view taken f on the line 44-4 of Figure 3,v

Y nozzle in place in the supporting shell,

Figurel 5 is an enlarged sectional View showing the component parts ofthe burner Figure 6 is an enlarged sectional view sleeve and fastened thereoniby a set screw 13.` `Anelongatedrsteanitube v19 is concentrically supported` in anelong'ated oilv tube for DLLAS, TEXAS AssiGNonqao oRNEar count:sirio'nimGaiman-QA a;

is a plan viewfofv the coupling 14-which .is concentrically. supported in the sleeve '.10 by spacers 15 that are suitably -fastl enedonfsaid oiltube.; The spacers have a ksnug fitvzbut arefloose enoughrto slide freely Vin the, sleeve;Y :-A

1-1A1`plugged headp16 r`screwed.onto the outenend; ofthe oil-tube 14 andthe;v head is divided into chambers 17 andv 118 by a central web' 20.-` f The Vsteam.,tube'19 is' screwed Y'into lsaid .web 20; `Ductsf21 are provided in the webjfor the passage oflltheyoil around the inner chamber tofthe-foilftubje. Thechambers 17 and 18 h ave'spudsl and 18 screwed 'intotheirz sidesfgas is shown in Figure 7.V A :union22 is yscrewed i onto the spud 1 `Iiect an'oi-'l line 23; wh'ileaunion 24 is-screwed onto jth'efs'pudV -18; to connect a steamfhosej .,f l v 2:3 *180 On the outer-orgnea-r. lfend-of thejsleeve f1()v -isfastened af collarj26of ayokeishaped-braclzieti ;27,y vsaidbracket beingfastened lin hori- ,Zont-alposition by ea-set "screw 728' engaging I the sleeve. An arm 27 of the bracket 27 has eyes- 2,9,ar1d 291 Y which freceivei and support ff the 'oil "line and steam hose respectively'.-y g

i 'An` oilY ,tip .3Q lhaslanV enlarged'collar; 31 in ternally screw threaded? and into'fwhich ,the

f' forwardfend Yof the oil tube 14isjscrewedJ4 A E -niixing sleeve32lis telescopedyin-to the 'tip' and has 2a flared;y end v321 conforming .to the Vpitch T'oi 'ports 83 intheend oftheftip .The tiphas a small internal spreader -cone`34disposed'concentricallyrin the flare-132', whereby thef' atomized mixturehlis spread 1 and more ',eve'nly distributed. to the ports. l

The mixing' sleeve hasan :annularlflange usl 32 with relation to the cone 34 and ports 33. A reduced shank 36 extends rearwardly from the collar and is integral with the sleeve. A nipple 37 is fastened on the forward end of the steam tube 19 and has a reduced nozzle 38 telescoping into the shank 36.

The nozzle 38 has anv axial bore leading from the tube 19 lto a flared discharge port 39 in the forward end of the nozzle. The shank 36 has oil inlet openings 40 between the flange and the nozzle soj as to admit oil from the tube 14 into the path of the steam discharged from the port 39.

It will be seen that the steam is sprayed into the shank 36 and sleeve 32, thus giving the steam full opportunity to expand, thus making for a maximum velocity and thus giving greater turbulence and more complete atomization of the oil when it leaves the ports 33 of the tip. The oil and steam being thoroughly mixed in the sleeve 32 produce an atomized mixture which is spread by the cone 34.

The delector 12 also includes a flared annular spreader 41 surrounding the tip 30 and provided with air openings 42 having upset vanes 43. The deflector also has air admitting openings 44 in its neck between lthe col lar 11 and the baille 41. The efficiency of the burner is very high, due to the fact that complete atomization of the oil is accomplished and the fuel is thrown out in' a Vcone shape at an angle to the entering air, thereby giving maximum turbulence for the mixing of the air and fuel.

Owing to the fact that the mixing o'f the oil and 'steam takes place within the tip 30 and adjacent the ports 33, the oil has no chance to settle out before it leaves the burner tip. If the mixing takes placeremote from the tip there is a tendency for the oil to settle out and liquefy, thus running out the lower'ports 33 in liquid form. This I avoid.

The tube 14 and the parts attached theretov may be removed from the sleeve 10 anda gas fuel tube substituted as in my co-pending applications herein before referred to. By unscrewing the tip collar 31 from the tube 14 and slipping out the mixing sleeve 32, access may be had to the parts.

Various changes inthe size and shape of the different parts as well as modifications and alterations, may be made Within the scope' of the appended claims.

What I claim, is:

1. In a fuel burner, an oil tube, a steam tube within the oil tube, a burner tip,- a mixing sleeve within the tip, and a nipple connected'witb the steam tube and projecting into the sleeve, said sleeve having oil admitting openings beyond the nipple, said nipple having a nozzle with a flared port for discharging and expandingsteam in the sleeve, the sleeve having a flared discharge end and the tip having ports also flared therefrom,

together with a cone projecting. in the sleeve.

2. In a fuel burner, an oil tube, a steam tube within the oil tube, a. burner tip having flared ports, a mixing sleeve within the tip having a discharge end flared to the ports of the tip, a nipple connected with the steam tube and projecting into the sleeve, the nipple having a nozzle with a flared port for discharging and expanding steam in the sleeve,

'and said sleeve having oil admitting openings be'yom'l the nipple.

3. In a fuel burner, an elongated axial oil tube, an elongated steam tube within the oil tube, a nipple mounted on the forward end of the steam tube and having a reduced nozzle, ain elongated burner tip mounted 0n the forward end of the oiltube, and a-removable mixing sleeve fitting snugly inthe sleeve and having a reduced shank telescoping into the forward end of the oil tube, the 4reduced nozzle of the nipple fitting snugly in the shank of the sleeve, the said sleeve shank having oil admitting ports.

4. A fuel burner as set forth in claim 3, in which the mixing sleeve is held in the tip by the end of the oil tube, and wherein the tip has its forward end closed and formed with ports.

In testimony whereof I afx my signature.

ROSS H. FORNEY. 

